Top Software Engineer Jobs in St. Louis, MO

The Open Source Engineer will expand LanceDB's integration with big data systems, manage dataset operations, and enhance open-source community efforts.

Build and own frontend applications for DeFi products using Next.js and TypeScript. Develop reusable component libraries and design systems, integrate Solana programs and wallet infrastructure, and translate complex financial concepts into accessible interfaces. Own performance, reliability, observability, testing, analytics, and end-to-end feature delivery while collaborating with protocol engineers, designers, and product teams.

Develop and maintain high-scale JavaScript and TypeScript monetization solutions using Prebid.js, Prebid Server, and Google Ad Manager. Own the header bidding wrapper, integrate auction and ad-tech standards, optimize Core Web Vitals and client-side performance, operate Google Cloud services, review code, document architecture, and resolve production issues.

Design, develop, and maintain NetSuite customizations, SuiteScript solutions, workflows, APIs, and third-party integrations. Configure ERP, CRM, and financial modules; improve 3PL integrations; deploy code across environments; conduct code reviews; mentor junior developers; document technical designs; and collaborate with administrators, developers, product owners, and cross-functional teams using Agile practices.

Leads architecture, delivery, production operations, reliability, modernization, and engineering organization across three regulated product lines. Establishes technical standards, governs infrastructure and CI/CD, owns SLOs and incident improvement, advances federated data and governed AI capabilities, and modernizes clinical and diagnostic platforms. Manages distributed teams across India and Serbia, develops leadership depth, makes architecture decisions, reviews code and infrastructure, and partners with security, compliance, quality, product, customers, funders, and auditors.

Develop and maintain Salesforce solutions, Apex code, platform configurations, data flows, and API integrations. Identify and implement system enhancements, troubleshoot complex Salesforce and data issues, support production operations, and maintain technical documentation. Collaborate in Agile processes, manage software changes through the SDLC, contribute to integrations with enterprise platforms, and mentor junior team members as appropriate.

Designs and delivers full-stack software features for electromagnetic warfare test and mission systems. Integrates TCP/IP-connected radios, instruments, servers, and rack components; builds accessible Angular interfaces; supports system evaluation, installation, testing, and sustainment. Develops data pipelines, warehouses, visualizations, threat-signal processing, software distribution tools, and on-premises LLM assistants. Works in Agile and DevSecOps environments while tracking project hours and assisting with effort estimates.

The Supervisor manages an application development team, oversees projects, guides staff, ensures compliance with IT standards, and mentors junior members.

Designs and maintains high-volume HL7 and FHIR ingestion pipelines, secure Epic and hospital integrations, data validation systems, and compliant healthcare data exchanges. Builds enterprise SaaS microservices using ReactJS, Python, and AWS services; optimizes distributed and hybrid-cloud environments; leads testing, code reviews, production troubleshooting, architecture documentation, and customer communications. Preferred experience includes Epic App Orchard, healthcare integration engines, clinical workflows, GenAI/ML, DevOps, data pipelines, and NoSQL.

Lead the architecture and modernization of a complex enterprise SaaS platform while remaining hands-on with critical software design and development. Define technical direction, improve scalability, reliability, security, performance, and maintainability, and guide design and code reviews. Partner across engineering and product teams, resolve complex technical challenges, establish engineering standards, mentor engineers, and translate architectural strategy into practical delivery.